Please open terminal and set following variable: export SANE_DEBUG_DLL=255 Then run simple-scan with command: simple-scan
The output should be similar to: https://gitlab.gnome.org/GNOME/simple-scan/-/tree/master You could investigate which backend is taking so long from logs. You could disable other (not hpaio) sane backends in file: sudo gedit /etc/sane.d/dll.conf ** Changed in: simple-scan (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to simple-scan in Ubuntu. https://bugs.launchpad.net/bugs/1921794 Title: connection to scanner very slow Status in simple-scan package in Ubuntu: Incomplete Bug description: When starting simple scan it does "search for scanners" for about 30 seconds, until "ready to scan". Previously (forgot when that was, but same hardware) it was almost immediate. Seems to be some software bug. --------------------------------------- The printer/scanner and driver are: Description: HP LaserJet MFP M426fdn Location: Local Printer Driver: HP LaserJet Pro MFP M426-M427 Postscript via CUPS. --------------------------------------- Running hp-check -i gives this output: Missing Required Dependencies error: 'libcups2' package is missing/incompatible error: 'python3-pyqt4' package is missing/incompatible error: 'gtk2-engines-pixbuf' package is missing/incompatible Missing Optional Dependencies error: 'python3-dbus.mainloop.qt' package is missing/incompatible ProblemType: Bug DistroRelease: Ubuntu 20.04 Package: simple-scan 3.36.3-0ubuntu0.20.04.0 ProcVersionSignature: Ubuntu 5.4.0-70.78-generic 5.4.94 Uname: Linux 5.4.0-70-generic x86_64 ApportVersion: 2.20.11-0ubuntu27.16 Architecture: amd64 CasperMD5CheckResult: skip CurrentDesktop: KDE Date: Tue Mar 30 00:59:36 2021 ExecutablePath: /usr/bin/simple-scan InstallationDate: Installed on 2018-06-15 (1018 days ago) InstallationMedia: Kubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) LocalLibraries: /usr/local/lib/libjpeg-x86_64.so.9.2.0 MachineType: Dell Inc. OptiPlex 7040 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.4.0-70-generic root=UUID=63e54e9f-567c-498f-883a-5216d348a80f ro quiet splash vt.handoff=7 SourcePackage: simple-scan UpgradeStatus: Upgraded to focal on 2020-08-20 (221 days ago) dmi.bios.date: 07/19/2019 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.15.5 dmi.board.name: 0HD5W2 dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 3 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.15.5:bd07/19/2019:svnDellInc.:pnOptiPlex7040:pvr:rvnDellInc.:rn0HD5W2:rvrA01:cvnDellInc.:ct3:cvr: dmi.product.family: OptiPlex dmi.product.name: OptiPlex 7040 dmi.product.sku: 06B9 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/simple-scan/+bug/1921794/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
